A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes shaft(1), straight; and axle(1), straight.
Classification: Transmission shafts and cranks, except camshafts and crankshafts
NSN 6220-00-251-5600
NSN 5950-00-258-6776
NSN 6685-00-255-5109
NSN 5990-00-524-2293
NSN 6610-01-419-4123
NSN 5930-01-335-2617
NSN 6320-01-378-6191
NSN 5975-01-365-9042
NSN 6650-01-276-7902
NSN 5920-00-034-0940
NSN 5925-01-316-3362
NSN 5975-01-449-5780